Alstom 10A Electric Switch Lock Manual

Model 10A

Electric Switch Lock

Installation • Operation • Maintenance

June 2003 Manual 8542

TABLE OF CONTENTS

SECTION 1 – INTRODUCTION

SCOPE OF MANUAL

............................................................................ 1-1

OPERATION – NORMAL RELEASE

............................................... 1-1

Preliminary Unlock Position ............................................................. 1-1

Unlock Position ................................................................................. 1-2

Switch Reverse .................................................................................. 1-3

Relock Position ................................................................................. 1-3

Normal Position ................................................................................ 1-3

OPERATION – EMERGENCY RELEASE

...................................... 1-3

Preliminary Unlock Position .............................................................. 1-3

Emergency Release Cover Raised ..................................................... 1-4

Emergency Release Lever Turned ..................................................... 1-4

Hand-Throw Lever Reverse ............................................................... 1-4

Emergency Release Cover Closed ..................................................... 1-4

Resetting Emergency Release ............................................................ 1-4

Inserting Latch Padlock ..................................................................... 1-5

SECTION 2 – INSTALLATION

GENERAL

.................................................................................................. 2-1

Model 50/51 Switch Stand ................................................................. 2-1

Meridian (Racor) Switch Stands 36D & 36H .................................... 2-3

SECTION 3– WIRING

GENERAL

.................................................................................................. 3-1

SECTION 4-MAINTENANCE

LUBRICATION

........................................................................................ 4-1

ADJUSTMENTS

...................................................................................... 4-2

SECTION 5– PERIODIC INSPECTION

WEAR CHECK ..........................................................................5-1

SECTION 6– REPLACEMENT PARTS

GENERAL ..................................................................................6-1

PARTS LIST ...............................................................................6-4 i

LIST OF ILLUSTRATIONS

1-1 Operating Parts of Model 10A Switch Lock Shown Locked in Normal Position

2-1 Model 10A Lock on Model 50/51 Switch Stand

2-2 Model 10A Lock on Meridian (Racor) 36D and 36H Switch Stand

3-1 Typical Connection Diagrams Showing Binding Post Designations, Internal Wiring,

and Contact Arrangements

3-2 Typical Application Circuits Showing the Model 10A Switch Lock applied to Absolute

Permissive Block Signaling

4-1 Latch Stand Lubrication Fittings

5-1 Model 10A Switch Stand Lock

6-1 Model 10A Switch Lock Mechanical Assembly

6-2 Model 10A Switch Lock Part References

6-3 Model 10A Switch Lock Component Parts References

6-4 Model 10A Switch Lock Relay Assembly

6-5 Model 10A Switch Lock Relay Components

1-2

2-2

2-3

3-1

3-2

4-1

5-1

6-1

6-2

6-3

6-7

6-8 ii

SECTION 1

INTRODUCTION

SCOPE OF MANUAL

This manual contains information to enable a field maintainer or shop repairman to understand the operation of the Model 10A Electric Switch Lock, know how to test its operation and be able to order spare or replacement parts.

The Alstom Model 10A Electric Switch Lock is used to securely lock the hand-throw lever of a hand operated switch machine or a ground-throw switch stand in the normal position, and it may be applied to either a right-hand or left-hand layout. The lock also interlocks a manually operated switch with signal circuits, so the switch cannot be operated unless traffic conditions permit, or unless the normally sealed emergency release is operated. This pamphlet describes the normal and emergency release operations, internal wiring, maintenance and installation of the lock with a variety of switch stands

.

OPERATION - NORMAL RELEASE

Starting with the switch locked in its normal position, the following describes, step by step, the operation of the lock mechanism. The references to the various parts are shown in Figure 1-1.

WARNING!

When hand-operating switch machines, keep head and body clear of the path of the handthrow lever. Stored mechanical energy, caused by improper adjustment, shifts in rails, and other switch components, or obstructions, can be transferred to the hand-throw lever during hand operation, causing it to move rapidly and forcefully.

Difficulty in hand-operating the switch could indicate a potential hazard. If any of these conditions are observed, check that the switch is adjusted properly as described in this publication.

Preliminary Unlock Position

When the padlock is removed from hole 2 in latch 1, the latch is forced upward by pedal 3, which is operated by spring 4 acting against the shoulder of plunger 6.

Plunger 6, moving forward under spring pressure, rotates cam 7, driving the sloped cam face under the roller on the underside of operating arm 13. Cam 7 continues to rotate in this same direction until the collar on plunger 6 strikes the end of its housing. The roller under arm 13, meanwhile, has moved up the sloped cam face, carrying arm 13 with it, and thereby tilting plate 9 and the fingers of the mechanically operated contacts, 2B, 3F, and

1-1

Section 1

Introduction

4B, which are attached to it. Thus, the normally closed (back) contacts are opened and the normally open

(front) contacts are closed.

Unlock Position

With the padlock removed, the lock is still effective because the armature arm 15 is resting in a locking notch formed by a step on the cam face of operating cam 7 and a cast projection on the lock case. When conditions are such that the control circuit is energized, armature 8 is attracted to the pole faces of coil 12 and raises its attached armature arm 15 out of the locking notch. With operating cam 7 unlocked, it is free to rotate further as pressure is applied to pedal 3. With this additional level of the pedal, latch 1 withdraws completely from the hand-throw lever slot, thus permitting the raising of the hand-throw lever .

When armature 8 is attracted to the pole faces, it moves the fingers of the electrically operated contacts 1F and

5B which are attached to it. Thus, the normally closed (back) contacts are opened and the normally open (front contacts are closed.

Figure 1-1. Operating Parts of Model 10A Switch Lock Shown Locked in Normal Position

1-2

Section 1

Introduction

Switch Reverse

Lighting of the green LED 11 indicates that the hand-throw lever may be lifted and moved to its reverse position. Stepping on pedal 3 now withdraws latch 1 and permits the hand-throw lever to be thrown to reverse position. Before the trainman can lock up the mechanism, it is necessary to restore the switch to its normal position. Otherwise, the latch rod will be in the way of projection 5 on the latch, and the pedal cannot move to its normally locked position and latch 1 cannot be down.

Relock Position

As the hand-throw lever is returned to its normal position, the latch rod slides clear of projection 5 on latch 1.

This allows latch 1 to return to its preliminary unlock position.

Normal Position

Depressing latch 1 moves operating cam 7 back to its normal locked position. Operating bar 13 is forced down by spring pressure as cam 7 moves back. Armature arm 15 is forced down onto cam 7 by projection spur 14 on the operating arm and spring pressure. Thus, all contacts are forcibly returned to their normal positions. Lock coils 12 are de-energized by the forced opening of contact 3F, indication LEDs are de-energized by the forced opening of contact 1F.

Reinsert the padlock into hole 2.

OPERATION– EMERGENCY RELEASE

When the normal control circuit does not respond and the switch must be unlocked and operated for emergency reasons, the emergency release (an optional feature) must be used.

Starting with the switch locked in its normal position, the operation of the lock by the trainman and the resulting action of the mechanism is as follows:

Preliminary Unlock Position

When the padlock is removed from hole 2 in latch 1, the latch is forced upward by pedal 3, which is operated by spring 4 acting against the shoulder of plunger 6.

Plunger 6 moving forward under spring pressure, rotates operating cam 7, driving the sloped cam face under the roller on the underside of operating arm 13. Cam 7 continues to rotate in this same direction until the collar on plunger 6 strikes the end of its housing. The roller under arm 13, meanwhile, has moved up the sloped cam face, carrying arm 13 with it, and thereby tilting plate 9 and the fingers of the mechanically operated contacts,

2B, 3F, and 4B which are attached to it. Thus, the normally closed (back) contacts are opened and the normally open (front) contacts are closed.

1-3

Section 1

Introduction

Emergency Release Cover Raised

Note that cover 18 cannot be raised until the lock is in the preliminary unlock position; cam 7 must be moved forward to a point where rod 19 can enter slot 17 to allow cover 18 to be raised. Cover 18 will remain open unsupported.

Emergency Release Lever Turned

Removing seal 21 and turning emergency release lever 20 counterclockwise, until its movement is stopped by a flange, attached latch 16 moves under operating and armature arms 13 and 15, lifting armature arm 15 and positioning the contacts just as though the lock coils had been energized by the control circuit.

Hand-Throw Lever Reverse

Depressing pedal 3 moves latch 1 back out of the way. Latch 1 is free to move because armature arm 15 is raised out of the step in cam 7, thus leaving the cam free to rotate as pedal 3 moves plunger 6 forward. As the lever is lifted, the latch rod moves in and holds latch 1 in the unlocked position, preventing the mechanism from being locked up until the switch has been restored to the normal position.

Emergency Release Cover Closed

As emergency release cover 18 is closed, the projecting cam surface on the inside of the cover engages emergency release lever 20, turning it so that attached latch 16 moves out from armature arm 15. Spring 10 forces armature arm 15 down into its normal locked position on operating cam 7. As armature arm 15 assumes its locked position, it causes the electrically operated contacts to assume their normal position.

Latch 16 is furnished with a barb on its upper edge. This barb catches on the side of arm 13, hiding arm 13 and its associated contacts from returning to their normal positions. To restore the lock requires the attention of an authorized person as explained next.

Resetting Emergency Release

This must be done by a person who has a key to the housing padlock. See WARNING! on page 1-1

Remove the switch padlock and the mechanism case padlock.

Open mechanism case. Lift operating arm 13 to allow latch 16 to drop fully back to its normal position. When arm 13 is released, it restores to the preliminary unlock position. Now, when the latch is pressed down prior to inserting the padlock, the mechanically operated contacts as well as the electrically operated contacts will be in their normal position.

Open emergency release cover 18 and reseal emergency release lever 20. Close cover 18 and the mechanism case cover, and reinsert the padlocks.

1-4

Section 1

Introduction

Inserting Latch Padlock

Depress latch 1 to raise pedal 3. Cam 7 will move fully back to its normal position. Insert the padlock in hole

2, thus maintaining the normal locked position.

1-5

SECTION 2

INSTALLATION

GENERAL

When installing Model 10A locks, refer to the switch layout drawing or railroad standard installations.

Instructions for applying the lock to various types of switch stands are given on the following pages.

Locks are shipped with all parts to fit the switch stands described in this section. The lever guide is fitted with two 1/8-inch thick shims for 3/4-inch thick hand-throw levers. One of these shims may be removed when a

7/8-inch hand-throw lever is used and both shims may be removed when a 1-inch thick lever is used. There should be no more than 1/8-inch total clearance between the sides of the hand-throw lever and the sides of the pocket in Model 10A lock. See WARNING! on page 1-1.

Model 50/51 Switch Stand

1. Bolt clamp 2 to switch lever, Figures 2-1A and 2-1D.

2. Using a 3/8-inch drill, drill through clamp and lever and install rivet 4, Figure 2-1D.

3. No tie dapping, Figure 2-1B.

4. Install cable entrance adapters and ventilators before bolting lock in place. Secure lock on tie

with rods, grip washer, nuts, and lock washers as shown.

5. To assemble latch rod 3, place switch lever in locked-up position, Figure 2-1A. Press pedal

down and insert latch rod through rectangular hole in lock stand. Insert stud 6 through pivot

hole in latch rod and temporarily secure it to clamp. Depress latch as far as it will go and

hold it in this position. Scribe across face of latch rod next to pedal casting, Figure 2-1C.

Remove stud and latch rod. Cut off latch rod 1/32-inch short of scribe mark.

6. For adjustable latch rod follow previous procedure, except adjust latch rod in 1/8” increments

instead of cutting.

7. In final assembly, tighten stud 6 with a wrench to secure latch rod to clamp. Drill through

clamp and stud with a 1/8” drill. Insert pin 5, Figure 2-1D.

2-1

Section 2

Installation

A - LAYOUT OF LOCK ON SWITCH STAND

B - INSTALLATION OF LOCK ON SWITCH STAND

4

3

2

3/8” 4

2

SCRIBE HERE

C -LATCH ROD ARRANGEMENT

5

6

D - PIN THROUGH

CLAMP & LEVER

Figure 2-1. Model 10A Lock on Model 51/50 Switch Stand

2-2

Section 2

Installation

Meridian (Racor) Switch Stands 36D & 36H

1. Bolt clamp 2 to switch lever, Figure 2-2C.

2. Using a 3/8-inch drill, drill through clamp and lever and install rivet 4, Figure 2-2C.

3. Install cable entrance adapters and ventilators before bolting lock in place. Secure lock on

supporting plate 12 and tie with threaded rod, bolt, nuts, and washers to fit switch stand lever,

Figure 2-2A.

4. To assemble latch rod 3, place switch lever in locked-up position, Figure 2-2B. Press pedal

down and insert latch rod through rectangular hole in lock stand. Insert stud bolt 14 through

pivot hole in latch rod and temporarily secure it to clamp. Depress latch as far as it will go

and hold it in this position. Scribe across face of latch rod next to pedal casting, Figure 2-2B.

Remove stud and latch rod. Cut off latch rod 1/32-inch short of scribe mark.

5. In final assembly, tighten stud 14 with a wrench to secure latch rod to clamp. Drill through

clamp and stud with a 1/8” drill. Insert pin 5.

A - INSTALLATION OF LOCK ON SWITCH STAND

3/8” DRILL THROUGH

LEVER & CLAMP

2

4 3

4

14 SCRIBE HERE

B - LATCH ROD ARRANGEMENT

5

C - PIN THROUGH CLAMP & LEVER

Figure 2-2. Model 10A Lock on Meridian (Racor) 36D and 36H Switch Stand

2-3

SECTION 3

GENERAL

WIRING

To wire the Model 10A lock, Remove the relay assembly from the case by taking out the four screws which hold it in place. Run the wires into the case through the cable entrance adapters, cutting them long enough to leave slack after connecting to the terminals.

Remove the wire guides located on each side of the mechanism; separate the wires so that half of them come up each side of the relay. Strip the insulation and apply connectors. Replace the guides after the wires are connected to the terminals. Replace the relay assembly in the case, making sure that the armature arm is free to operate vertically without rubbing on the stop in the case.

Single-colored LED Bi-colored LED

(a) Lock-magnet contacts– one independent front and one independent back

Release-latch contacts– one independent front and two independent backs

Single-colored LED Bi-colored LED

(b) Lock-magnet contacts– two independent backs

Release-latch contacts– one independent front and two independent backs

Single-colored LED Bi-colored LED

(b) Lock-magnet contacts– two independent backs

Release-latch contacts– one independent front and two independent backs

Figure 3-1. Typical Connection Diagrams Showing Binding Designations, Internal

Wiring, and Contact Arrangements.

3-1

Section 3

Wiring

(a) Circuit for manual control.

For connection diagram see Figure 3-1 (c)

(b) Circuit for automatic control.

For connection diagram see Figure 3-1 (c)

Figure 3-2. Typical Application Circuits Showing the Model 10A Switch Lock

Applied to Absolute Permissive Block Signaling.

3-2

SECTION 4

MAINTENANCE

LUBRICATION

Figure 4-1 shows the latch stand lubrication fittings A, B, C, and D. Lubricate latch stand with an all temperature, lithium-based grease not more than once every three months.

Referring to Figure 1-1, lubricate pin 22 occasionally with a light oil, such as Mobil Aero. Other bearing points are permanently lubricated and require no attention.

Operate the lock after lubricating it to be sure that the lubrication is keeping the lock free to operate correctly.

D

A

C

B

Figure 4-1. Latch Stand Lubrication Fittings

4-1

Section 4

Maintenance

ADJUSTMENTS

The following information will be useful in checking the contact openings and pressures (adjust pressure by bending the stops; adjust opening by bending the contact fingers):

A. Padlock in place

1. Electrically operated contacts:

a. Front-open .050” minimum

b. Back-closed with pressure of 8 to 10 oz. This high pressure is obtain by

mechanically driven back stop. See Figure 1-1.

2. Mechanically operated contacts:

a. Front-open .050” minimum

b. Back-closed with pressure of 8 to 10 oz.

B. Padlock removed -lock de-energized

1. Electrically operated contacts:

a. Front-open .050” minimum

b. Back-closed with pressure of 3 oz min.

2. Mechanically operated contacts:

a. Front-closed with pressure of 6 to 8 oz.

b. Back-open .050” minimum

C. Padlock removed-lock energized

1. Electrically operated contacts:

a. Front -closed with pressure of 3 oz min.

b. Back-open .050” minimum

2. Mechanically operated contacts:

a. Front-closed with pressure of 6 to 8 oz.

b. Back-open .050” minimum

After the contact openings and pressures have been adjusted to the above specifications, the operating values, i.e., the pickup-up and drop-away currents, for operations on 8-10 volts (100 ohms) should be checked that they meet the specifications listed below. Spring, item #10, Figure 1-1, can be bent to adjust the downward pressure on the armature arm to achieve these specifications.

Lock Resistance 100 ohms ±10%

Maximum Pick-Up Current

Minimum Pick-Up Current

Minimum Drop-Away Current

.055 ampere

.035 ampere

.007 ampere

4-2

WEAR CHECK

SECTION 5

PERIODIC INSPECTION

At least yearly the switch lock should be checked for wear, using the following procedure:

There should be no more than 1/8-inch total clearance between the sides of the switch stand operating lever and the sides of the switch lock. Add shims, if necessary, to reduce the clearance to an 1/8-inch.

1. Place the switch lock in the locked position with a padlock in place.

2. Pull up on the “Depress to Apply Padlock” pedal.

3. The “Depress to Apply” pedal pawl should prevent the switch machine throw rod from being

removed from the machine lock by a minimum of 1/8-inch (See Figure 5-1), with the switch

stand operating lever driven toward the shimmed side of its opening.

4. If the pedal pawl restraint is less than 1/8-inch, replace the worn mechanical parts of the

switch lock. (As a minimum, this would include both foot pedals, plus the associated shafts

and bushings.)

If mechanical parts are replaced, it is recommended that the pedal pawl interference be at

least 3/8-inch. When the 3/8-inch decreases to 1/8-inch, replace the worn parts again.

Figure 5-1. Model 10A Switch Stand Lock

5-1

GENERAL

SECTION 6

REPLACEMENT PARTS

This section identifies and lists the component parts that may be ordered to replace the same in the field or at the shop level. Parts are identified by Alstom part numbers.

PARTS LIST

Switch lock illustrations are followed by a parts list giving part descriptions, and numbers of replaceable parts.

Index numbers are given in each parts list to precisely locate referenced parts in the illustration. This section of the manual covers currently manufactured parts that are available as spares.

Reference A

Reference B

Figure 6-1. Model 10A Switch Lock Mechanical Assembly

6-1

Section 6

Replacement Parts

Figure 6-2. Model 10A Switch Lock Part References

6-2

Section 6

Replacement Parts

Reference C

Reference D

Reference E

Figure 6-3. Model 10A Switch Lock Component Parts References

6-3

Model 10A Electric Switch Lock

Replacement Parts

Ref. Description

A ELECTRIC LOCK, MECHANICAL ASSEMBLY

4 STAPLE

16

17

18

12 COTTER PIN, 0.125 X 0.750 Z/Y

13 BASE, LEVER

14 SCREW, 0.500 X 0.750 FHSCS SS

SCREW, 1/4 BTN HEAD SKT CAP

FITTING, 0.187 STR DRIVE

FITTING, 0.125 65 DEG PTF

21 TRUNNION,CAM

22 TRUNNION,CAM

24

24

25

WASHER, 0.312 NARROW FLAT Z/Y

SCREW, 0.312-18 X 0.750 HEX Z/Y

CAM BLOCK, FOOT LEVER

C ROD CONNECTING

6-4

Section 6

Replacement Parts

Part

Number

854600-000-00

854133

854134-001-01

854134

854145

854148

854140

854151

854171

857109-001X

854134-030

854135-001

854135-002

990506-075-02

854102

073957-075-30

854107

073752-050-30

990900-004

990900-007

854120

854119

854110

854111

854112

990600-031-002

990723-075-22

854116

854117

854100

854113

854105X

854105

Model 10A Electric Switch Lock

Replacement Parts (cont.)

Ref. Description

30 ROD WASHER, CONNECTING

35 LATCH, LEVER

36 PIN, LATCH

37

D

CAM, FOOT LEVER

CAM ASSEMBLY, OPERATING

38 CAM,OPERATING

40 STRAP

43

44

45

46

WASHER, .25 INT TOOTH S.S. LOCK

SCREW, 0.250 X 0.750 RH SS

SCREW, 10-32 X .5 FH PHIL S.S.

PIN, #6 X 1.000 TAPER

E

49

50

52

53

RELEASE ASSY, EMERGENCY

COVER, EMERGENCY RELEASE

CAM, RELEASE LOCKOUT

PIN, EMERGENCY RELEASE SAFETY

PIN, 1/8 X 3/4 S.S. SPRING

Section 6

Replacement Parts

Part

Number

854105-001

854106

854106-001

854153

854104

854101

854114

854103

854136X

854136

854150

G30804-018

854161

854108

078113-025-40

072589-075-30

072682-050-30

069146-100-00

854160-005-40

854160-010-40

854160-020-40

854160-031-40

854160-040-40

854128-001-01

854129

854128

854125

854126

854124

990563-075-70

854137

854138

6-5

Model 10A Electric Switch Lock

Replacement Parts (cont.)

Ref. Description

61

62

63

64

57

58

59

WASHER, #8 FLAT Z/Y

PIN, RELEASE SAFETY

PIN, RELEASE STOP

SCREW, #10-32 X 0.500 FHSCS SS

PIN, RELEASE LOCKOUT

SPRING, EMERGENCY RELEASE

SCREW, #8-32 X 0.375 SLT RD HD

Section 6

Replacement Parts

Part

Number

854121

033072-008-02

854123

854131

854130G

073871-050-30

854122

854127

028863-037-01

857109-001X

6-6

Section 6

Replacement Parts

Figure 6-4. Model 10A Switch Lock Relay Assembly

6-7

Section 6

Replacement Parts

Reference B

Reference C

Reference D

Figure 6-5. Model 10A Switch Lock Relay Components

6-8

Model 10A Electric Switch Lock

Relay Assembly Replacement Parts

Ref. Description

A

A1

A2

A3

Relay Assembly Complete, has the following contact combination with bi-colored LED:

1F and 1B electrically operated

2F and 1B mechanically operated

Same as Ref. A, except has the following contact combination with single-colored LED:

1F and 1B electrically operated

2F and 1B mechanically operated

Same as Ref. A, except has the following contact combination with bi-colored LED:

2B electrically operated

1F and 2B mechanically operated

Same as Ref. A, except has the following contact combination with single-colored LED:

2B electrically operated

1F and 2B mechanically operated

Section 6

Replacement Parts

Part

Number

854077-401-02

854077-401-01

854077-400-02

854077-400-01

6

7

2

3

WASHER, WAVE SPRING

POST, #14 X 2.250 AAR BINDING

4 YOKE

5 SCREW, .25-20 X 1.25 HX HD S.S.

NUT, .25-20 HVY HX S.S.

WASHER, .25 INT TOOTH S.S. LOCK

9

17

18

19

COTTER PIN, 0.062 X 0.375 Z/Y

12 PIN, 1/8 X 3/4 S.S. SPRING

13 CORE

14

15

NUT, CORE RETAINING

WASHER, #14 AAR

SCREW, 10-32 X .875 PHILLIPS S.S.

WASHER, #10 INT TOOTH LOCK S.S.

SCREW, #10-32 X 0.500 PAN HD PHIL.

854077-351

854077-352

990102-250-55

854077-355

990722-125-40

990331-025-40

078113-025-40

854077-359

990502-037-02

854077-361

854077-364

990563-075-70

854077-367

854077-368

990101-008-55

854077-371

072535-087-30

078109-010-40

072515-050-30

6-9

24

26

27

28

29

30

SCREW, #6-32 X .375 PHILLIPS S.S.

WASHER, #6 INT TOOTH S.S. LOCK

LEAD ASSY, 2-4

LEAD ASSY, #3

LEAD ASSY, 1-5

POST, #14 X 1.875 AAR BINDING

31 ARMATURE

36

37

38

D

42

42A

43

44

RIVET, ARMATURE PLATE

RIVET, .125 X .75 FH COPPER

SCREW, 10-32 X .5 FH PHIL S.S.

OPERATING BAR ASSEMBLY

HEEL CONTACT ASSY, OPER BAR

HEEL CONTACT ASSY, OPER BAR for B1

NUT, #6-32 S.S. HEX

CONTACT ASSEMBLY, ARMATURE

6-10

B

B1

20

21

22

23

Model 10A Electric Switch Lock

Relay Assembly Parts (cont.)

Ref. Description

BOARD ASSY, TERMINAL, with front contact in space 3 and back contacts in spaces 2 and 4, for Ref A1 & A2

As previous, except with front contacts in spaces 2 & 3 and back contact in space 4, for Ref A2 & A3

BOARD, 854 LOCK TERMINAL

CONTACT, SHORT BACK

CONTACT ASSY, BACK

CONTACT ASSY, FRONT

Section 6

Replacement Parts

Alstom Part

Number

854077-050-02

854077-050-01

854077-001

854077-002-01

854077-003-01

854077-004-01

854077-025-01

072385-037-30

854077-009

071105-006-60

854077-011-01

854077-012-01

854077-013-01

990102-187-55

854077-100-01

854077-051

854077-052

854077-053

854077-054

854077-055

854077-056

854077-057

072682-050-30

854077-150-01

854077-101

854077-102

854077-104

854077-200-02

854077-200-01

070705-006-30

854077-250-02

Model 10A Electric Switch Lock

Relay Assembly Parts (cont.)

Ref. Description

44A

45

46

46A

47

CONTACT ASSY, ARMATURE

KIT, TERMINAL HARDWARE (not shown)

BOARD ASSY, BI-COLOR LED

BOARD ASSY, LED (single-colored LED) (not shown)

WASHER, #6 FLAT S.S.

Section 6

Replacement Parts

Alstom Part

Number

854077-250-01

854077-350-01

854077-300-02

854077-300-01

071005-006-30

34105

6-11

NOTES